Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate
2006-02-07
2006-02-07
Cantelmo, Gregg (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer, spacer or materials for use therewith
C429S254000
Reexamination Certificate
active
06994935
ABSTRACT:
The present invention relates to the separator for batteries wherein the non-woven cloth comprising fibers mainly composed of polyolefin type resin is provided with hydrophilic property on the fiber surface at least by sulfuric compound and characterized as follows:(a) the ratio of atomic mass of sulfur to atomic mass of carbon (S/C) is 5×10−3to 30×10−3(b) the tensile strength is not less than 3 kg/cm2and the preparation method of this separator. The present invention also relates to the secondary batteries using this separator.
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Ikoma et al., “Study on self-discharge of a metal hybride rechargeable battery system employingMnNi5−xMx alloy,”174th Chicago(Fall)Meeting, 88-2, (1988).
Ikoma et al., “Self-discharge mechanism of sealed-type nickel/metal-hydride battery,”J. Electochem. Soc., 143:6, 1904-1907 (Jun. 1996).
Cantelmo Gregg
Merchant & Gould P.C.
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